Expression formatter
upgrading scalatest 1.8
Fixing a small compilation issue
upgrading to scala 2.10.3 and scala test 1.9.2
Lists and files
Adding *.iml to .gitignore
Merge remote-tracking branch 'origin/master'

Conflicts:
	.gitignore
	build.sbt
	project/plugins.sbt
	src/test/scala/com/vd/functions/RationalSpec.scala
Making Rational Ordered and formatting Queue